Introducing TREAD from SIG SAUER; all the features, all the freedom - none of the compromises. The TREAD is engineered to deliver exceptional quality, performance and comes standard with the most sought-after features for today's AR platform rifles. Unlike most rifles in its class, the TREAD is easily customizable with a full line of purpose-built accessories, designed and built in the USA. The TREAD from SIG SAUER - the new face of freedom.1-30 round ETS magazine and 1-10 round Magpul Pmag are included.